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Message-Id: <1358254566-12419-16-git-send-email-lee.jones@linaro.org>
Date: Tue, 15 Jan 2013 12:55:55 +0000
From: Lee Jones <lee.jones@...aro.org>
To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: arnd@...db.de, linus.walleij@...ricsson.com, sameo@...ux.intel.com,
John Beckett <john.beckett@...ricsson.com>,
Lee Jones <lee.jones@...aro.org>
Subject: [PATCH 15/26] mfd: ab8500-debugfs: Export all AB8500 ADCs as debugfs nodes
From: John Beckett <john.beckett@...ricsson.com>
Allow a user to take a glimpse into the inner workings of the
AB8500 Analogue-to-Digital Converters, via debugfs.
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: John Beckett <john.beckett@...ricsson.com>
Reviewed-by: Mattias WALLIN <mattias.wallin@...ricsson.com>
---
drivers/mfd/ab8500-debugfs.c | 486 ++++++++++++++++++++++++++++++++++++++++--
1 file changed, 465 insertions(+), 21 deletions(-)
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index 7698d30..aedbcb0 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -82,7 +82,7 @@
#include <linux/slab.h>
#include <linux/mfd/abx500.h>
-#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-gpadc.h>
#ifdef CONFIG_DEBUG_FS
#include <linux/string.h>
@@ -143,6 +143,7 @@ static struct hwreg_cfg hwreg_cfg = {
};
#define AB8500_NAME_STRING "ab8500"
+#define AB8500_ADC_NAME_STRING "gpadc"
#define AB8500_NUM_BANKS 22
#define AB8500_REV_REG 0x80
@@ -672,6 +673,382 @@ static int ab8500_hwreg_open(struct inode *inode, struct file *file)
return single_open(file, ab8500_hwreg_print, inode->i_private);
}
+static int ab8500_gpadc_bat_ctrl_print(struct seq_file *s, void *p)
+{
+ int bat_ctrl_raw;
+ int bat_ctrl_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ bat_ctrl_raw = ab8500_gpadc_read_raw(gpadc, BAT_CTRL);
+ bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc,
+ BAT_CTRL, bat_ctrl_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ bat_ctrl_convert, bat_ctrl_raw);
+}
+
+static int ab8500_gpadc_bat_ctrl_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab8500_gpadc_bat_ctrl_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_bat_ctrl_fops = {
+ .open = ab8500_gpadc_bat_ctrl_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_btemp_ball_print(struct seq_file *s, void *p)
+{
+ int btemp_ball_raw;
+ int btemp_ball_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ btemp_ball_raw = ab8500_gpadc_read_raw(gpadc, BTEMP_BALL);
+ btemp_ball_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL,
+ btemp_ball_raw);
+
+ return seq_printf(s,
+ "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw);
+}
+
+static int ab8500_gpadc_btemp_ball_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ab8500_gpadc_btemp_ball_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_btemp_ball_fops = {
+ .open = ab8500_gpadc_btemp_ball_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_main_charger_v_print(struct seq_file *s, void *p)
+{
+ int main_charger_v_raw;
+ int main_charger_v_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ main_charger_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_V);
+ main_charger_v_convert = ab8500_gpadc_ad_to_voltage(gpadc,
+ MAIN_CHARGER_V, main_charger_v_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ main_charger_v_convert, main_charger_v_raw);
+}
+
+static int ab8500_gpadc_main_charger_v_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ab8500_gpadc_main_charger_v_print,
+ inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_main_charger_v_fops = {
+ .open = ab8500_gpadc_main_charger_v_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_acc_detect1_print(struct seq_file *s, void *p)
+{
+ int acc_detect1_raw;
+ int acc_detect1_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ acc_detect1_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT1);
+ acc_detect1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ACC_DETECT1,
+ acc_detect1_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ acc_detect1_convert, acc_detect1_raw);
+}
+
+static int ab8500_gpadc_acc_detect1_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ab8500_gpadc_acc_detect1_print,
+ inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_acc_detect1_fops = {
+ .open = ab8500_gpadc_acc_detect1_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_acc_detect2_print(struct seq_file *s, void *p)
+{
+ int acc_detect2_raw;
+ int acc_detect2_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ acc_detect2_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT2);
+ acc_detect2_convert = ab8500_gpadc_ad_to_voltage(gpadc,
+ ACC_DETECT2, acc_detect2_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ acc_detect2_convert, acc_detect2_raw);
+}
+
+static int ab8500_gpadc_acc_detect2_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ab8500_gpadc_acc_detect2_print,
+ inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_acc_detect2_fops = {
+ .open = ab8500_gpadc_acc_detect2_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_aux1_print(struct seq_file *s, void *p)
+{
+ int aux1_raw;
+ int aux1_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ aux1_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX1);
+ aux1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX1,
+ aux1_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ aux1_convert, aux1_raw);
+}
+
+static int ab8500_gpadc_aux1_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab8500_gpadc_aux1_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_aux1_fops = {
+ .open = ab8500_gpadc_aux1_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_aux2_print(struct seq_file *s, void *p)
+{
+ int aux2_raw;
+ int aux2_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ aux2_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX2);
+ aux2_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX2,
+ aux2_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ aux2_convert, aux2_raw);
+}
+
+static int ab8500_gpadc_aux2_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab8500_gpadc_aux2_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_aux2_fops = {
+ .open = ab8500_gpadc_aux2_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_main_bat_v_print(struct seq_file *s, void *p)
+{
+ int main_bat_v_raw;
+ int main_bat_v_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ main_bat_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_BAT_V);
+ main_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V,
+ main_bat_v_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ main_bat_v_convert, main_bat_v_raw);
+}
+
+static int ab8500_gpadc_main_bat_v_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ab8500_gpadc_main_bat_v_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_main_bat_v_fops = {
+ .open = ab8500_gpadc_main_bat_v_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_vbus_v_print(struct seq_file *s, void *p)
+{
+ int vbus_v_raw;
+ int vbus_v_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ vbus_v_raw = ab8500_gpadc_read_raw(gpadc, VBUS_V);
+ vbus_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBUS_V,
+ vbus_v_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ vbus_v_convert, vbus_v_raw);
+}
+
+static int ab8500_gpadc_vbus_v_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab8500_gpadc_vbus_v_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_vbus_v_fops = {
+ .open = ab8500_gpadc_vbus_v_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_main_charger_c_print(struct seq_file *s, void *p)
+{
+ int main_charger_c_raw;
+ int main_charger_c_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ main_charger_c_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_C);
+ main_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc,
+ MAIN_CHARGER_C, main_charger_c_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ main_charger_c_convert, main_charger_c_raw);
+}
+
+static int ab8500_gpadc_main_charger_c_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ab8500_gpadc_main_charger_c_print,
+ inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_main_charger_c_fops = {
+ .open = ab8500_gpadc_main_charger_c_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_usb_charger_c_print(struct seq_file *s, void *p)
+{
+ int usb_charger_c_raw;
+ int usb_charger_c_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ usb_charger_c_raw = ab8500_gpadc_read_raw(gpadc, USB_CHARGER_C);
+ usb_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc,
+ USB_CHARGER_C, usb_charger_c_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ usb_charger_c_convert, usb_charger_c_raw);
+}
+
+static int ab8500_gpadc_usb_charger_c_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ab8500_gpadc_usb_charger_c_print,
+ inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_usb_charger_c_fops = {
+ .open = ab8500_gpadc_usb_charger_c_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_bk_bat_v_print(struct seq_file *s, void *p)
+{
+ int bk_bat_v_raw;
+ int bk_bat_v_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ bk_bat_v_raw = ab8500_gpadc_read_raw(gpadc, BK_BAT_V);
+ bk_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc,
+ BK_BAT_V, bk_bat_v_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ bk_bat_v_convert, bk_bat_v_raw);
+}
+
+static int ab8500_gpadc_bk_bat_v_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab8500_gpadc_bk_bat_v_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_bk_bat_v_fops = {
+ .open = ab8500_gpadc_bk_bat_v_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ab8500_gpadc_die_temp_print(struct seq_file *s, void *p)
+{
+ int die_temp_raw;
+ int die_temp_convert;
+ struct ab8500_gpadc *gpadc;
+
+ gpadc = ab8500_gpadc_get();
+ die_temp_raw = ab8500_gpadc_read_raw(gpadc, DIE_TEMP);
+ die_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, DIE_TEMP,
+ die_temp_raw);
+
+ return seq_printf(s, "%d,0x%X\n",
+ die_temp_convert, die_temp_raw);
+}
+
+static int ab8500_gpadc_die_temp_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ab8500_gpadc_die_temp_print, inode->i_private);
+}
+
+static const struct file_operations ab8500_gpadc_die_temp_fops = {
+ .open = ab8500_gpadc_die_temp_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
/*
* return length of an ASCII numerical value, 0 is string is not a
* numerical value.
@@ -1040,6 +1417,7 @@ static const struct file_operations ab8500_hwreg_fops = {
};
static struct dentry *ab8500_dir;
+static struct dentry *ab8500_gpadc_dir;
static int __devinit ab8500_debug_probe(struct platform_device *plf)
{
@@ -1050,14 +1428,14 @@ static int __devinit ab8500_debug_probe(struct platform_device *plf)
irq_first = platform_get_irq_byname(plf, "IRQ_FIRST");
if (irq_first < 0) {
dev_err(&plf->dev, "First irq not found, err %d\n",
- irq_first);
+ irq_first);
return irq_first;
}
irq_last = platform_get_irq_byname(plf, "IRQ_LAST");
if (irq_last < 0) {
dev_err(&plf->dev, "Last irq not found, err %d\n",
- irq_last);
+ irq_last);
return irq_last;
}
@@ -1065,42 +1443,108 @@ static int __devinit ab8500_debug_probe(struct platform_device *plf)
if (!ab8500_dir)
goto err;
- file = debugfs_create_file("all-bank-registers",
- S_IRUGO, ab8500_dir, &plf->dev, &ab8500_registers_fops);
+ ab8500_gpadc_dir = debugfs_create_dir(AB8500_ADC_NAME_STRING,
+ ab8500_dir);
+ if (!ab8500_gpadc_dir)
+ goto err;
+
+ file = debugfs_create_file("all-bank-registers", S_IRUGO,
+ ab8500_dir, &plf->dev, &ab8500_registers_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("register-bank", (S_IRUGO | S_IWUSR),
+ ab8500_dir, &plf->dev, &ab8500_bank_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("register-address", (S_IRUGO | S_IWUSR),
+ ab8500_dir, &plf->dev, &ab8500_address_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("register-value", (S_IRUGO | S_IWUSR),
+ ab8500_dir, &plf->dev, &ab8500_val_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("irq-subscribe", (S_IRUGO | S_IWUSR),
+ ab8500_dir, &plf->dev, &ab8500_subscribe_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("irq-unsubscribe", (S_IRUGO | S_IWUSR),
+ ab8500_dir, &plf->dev, &ab8500_unsubscribe_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR),
+ ab8500_dir, &plf->dev, &ab8500_hwreg_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_bat_ctrl_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_btemp_ball_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("main_charger_v", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_charger_v_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("acc_detect1", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_acc_detect1_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("acc_detect2", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_acc_detect2_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_aux1_fops);
+ if (!file)
+ goto err;
+
+ file = debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_aux2_fops);
if (!file)
goto err;
- file = debugfs_create_file("register-bank",
- (S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev, &ab8500_bank_fops);
+ file = debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_bat_v_fops);
if (!file)
goto err;
- file = debugfs_create_file("register-address",
- (S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev,
- &ab8500_address_fops);
+ file = debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_vbus_v_fops);
if (!file)
goto err;
- file = debugfs_create_file("register-value",
- (S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev, &ab8500_val_fops);
+ file = debugfs_create_file("main_charger_c", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_main_charger_c_fops);
if (!file)
goto err;
- file = debugfs_create_file("irq-subscribe",
- (S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev,
- &ab8500_subscribe_fops);
+ file = debugfs_create_file("usb_charger_c", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_usb_charger_c_fops);
if (!file)
goto err;
- file = debugfs_create_file("irq-unsubscribe",
- (S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev,
- &ab8500_unsubscribe_fops);
+ file = debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_bk_bat_v_fops);
if (!file)
goto err;
- file = debugfs_create_file("hwreg",
- (S_IRUGO | S_IWUSR), ab8500_dir, &plf->dev,
- &ab8500_hwreg_fops);
+ file = debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR),
+ ab8500_gpadc_dir, &plf->dev, &ab8500_gpadc_die_temp_fops);
if (!file)
goto err;
--
1.7.9.5
--
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